Strut Services Group, Inc.

Unistrut Alabama



HFMS – Countersunk Head Screw

Part No. Thread Size Length (ft) Finish Product Weight / Piece (lbs)
HFMS025062 1/4″ 5/8″ EG 0.012
HFMS031100 5/16″ 1″ EG 0.026
HFMS050100 1/2″ 1″ EG 0.093
  • Dimensions conform to ASME B18.22.1
  • Threads conform to ANSI B1.1, UNC-2A

Installation Torque:



  • Screws conform to SAE J429 GR 2 (exceeds ASTM A307).


  • Electrogalvanized (EG):  Conforms to ASTM B633, Type III SC1
  • Unistrut Defender (DF):  Conforms to ASTM A1059

Materials & Finishes – Special Metals:

  • Stainless Steel, Type 316 (SS):  Conforms to ASTM A240, Type 316 *

* These materials have different physical properties and performance characteristics. Please contact us for design support.

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